A sound box capable of reducing wind noise

Abstract

The application discloses a sound box capable of reducing wind noise, which comprises a decorative plate, a fan-shaped slit arranged on the decorative plate, a sound box base, a sound box shell arranged at the top edge of the sound box base, a bass unit cavity formed in the sound box shell, a bass unit diaphragm arranged on the sound box base, a bass unit arranged on the top of the bass unit diaphragm, and a protective cover arranged on the outer side of the bass unit on the sound box base.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound boxes, in particular to a sound box capable of reducing wind noise. BACKGROUND

[0002] Modern sound boxes often have multiple loudspeaker acoustic units, and each loudspeaker has different responsibilities, some are responsible for high-frequency sound, and some are responsible for low-frequency parts, thereby providing users with a rich sound experience. The low-frequency unit has low frequency and large diaphragm amplitude, which can drive the airflow to reciprocate in the closed sound cavity. When the reciprocating airflow passes through the narrow gap, the airflow will rub against the surrounding structure to generate various turbulence and vortex shedding phenomena. The shedding of the vortex will produce wind noise that can be perceived by people. The greater the airflow velocity, the more obvious the wind noise. When the frequency of vortex shedding is equal to the natural frequency of the structure, the structure will resonate, thereby producing greater wind noise.

[0003] Currently, some sound boxes have a transparent structure. In order to be beautiful, the designer often covers a decorative plate structure on the low-frequency loudspeaker unit, and at the same time, leaves a gap between the decorative plate and the loudspeaker unit, thereby ensuring the sound cavity volume of the low-frequency unit. When the gap between the decorative plate and the low-frequency unit is too narrow, the airflow generated by the diaphragm movement of the low-frequency unit cannot flow smoothly in the entire low-frequency unit sound cavity. When the gas pressure is too large, the air rubs against the structure, thereby forming vortex shedding at the narrow gap and forming wind noise. SUMMARY

[0004] The purpose of the present application is to provide a sound box capable of reducing wind noise to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a sound box capable of reducing wind noise, comprising a decorative plate, the decorative plate is provided with a plurality of fan-shaped slits, the plurality of fan-shaped slits are distributed in a circular manner around the circumference of the fan-shaped slit.

[0006] A sound box capable of reducing wind noise further comprises a sound box base, the top edge of the sound box base is provided with a sound box shell, the inside of the sound box shell forms a low-frequency unit sound cavity, a low-frequency unit diaphragm is arranged on the sound box base, a low-frequency unit is arranged on the top of the low-frequency unit diaphragm, a protective cover is arranged on the outside of the low-frequency unit on the sound box base, and the decorative plate is fixedly installed on the sound box base and located above the protective cover.

[0007] Preferably, the protective cover is provided with an air vent groove in the concave bending portion.

[0008] Preferably, the cross section of the protective cover is in the shape of an inverted "Fang" type side extending structure.

[0009] Preferably, the air vent grooves are arranged in a plurality, and the plurality of air vent grooves are distributed in a circle around the circumference of the protective cover, and the air vent grooves are in the form of "L" shaped arc-shaped notch structure.

[0010] Preferably, the decorative plate is in the form of "H" shaped cover arc structure, and the side surface is attached to the inner side of the sound casing.

[0011] Preferably, the middle top of the protective cover penetrates the middle of the decorative plate.

[0012] Preferably, the middle part between the protective cover and the decorative plate has a certain gap.

[0013] Preferably, the middle top of the protective cover is flush with the top of the middle inner groove of the decorative plate.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] The present application improves the exchange efficiency of the gas between the decorative plate and the bass horn unit and the gas above the sound cavity of the decorative plate by increasing the gap for air flow on the decorative plate and designing the gap according to certain aesthetics, facilitates the reciprocating motion of the gas in the entire sound cavity, reduces the air flow pressure, thereby reducing friction, also reducing vortex shedding phenomenon, thereby reducing wind noise. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic diagram of the sound casing of the present application.

[0017] Fig. 2 It is a structural schematic diagram of the sound casing of the present application.

[0018] Fig. 3 It is a structural schematic diagram of the decorative plate of the present application.

[0019] In the figure: sound casing 2; bass unit sound cavity 3; bass unit diaphragm 4; bass unit 5; protective cover 6; air vent groove 61; decorative plate 7; fan-shaped slit 71. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] Please refer to Figs. 1 to 3The application provides a technical scheme: a sound system capable of reducing wind noise of a sound box, comprising a decorative plate 7, wherein a plurality of fan-shaped slits 71 are formed on the decorative plate 7, and the plurality of fan-shaped slits 71 are distributed in a circumferential direction of the fan-shaped slits 71.

[0022] The sound system capable of reducing wind noise of the sound box further comprises a sound system base 1, wherein a sound system shell 2 is mounted at a top edge of the sound system base 1, an inside of the sound system shell 2 is formed as a bass unit sound cavity 3, the bass unit sound cavity 3 is arranged to improve sound performance of a bass unit, the bass unit sound cavity 3 can absorb external noise, improve a signal-to-noise ratio of the entire sound system, and make sound quality clearer and purer.

[0023] A bass unit diaphragm 4 is mounted on the sound system base 1, the diaphragm is made of a material, can convert an electrical signal into mechanical vibration to generate a bass signal, a bass unit 5 is mounted at a top of the bass unit diaphragm 4, and the bass unit 5 is used to amplify and process low-frequency signals in music so that the low-frequency signals can be heard by listeners.

[0024] A protective cover 6 is fixedly mounted on the sound system base 1 and located outside the bass unit 5, and the decorative plate 7 is fixedly mounted on the sound system base 1 and located above the protective cover 6, the protective cover 6 is used to protect the bass unit 5 and the bass unit diaphragm 4.

[0025] Air passages 61 are formed in bent inner recesses of the protective cover 6, a cross section of the protective cover 6 is in an inverted “” type and extends in a circumferential direction, the plurality of air passages 61 are distributed in a circumferential direction of the protective cover 6, the air passages 61 are in an “L” type arc-shaped slot structure, air below the protective cover 6 and air between the decorative plate 7 and the protective cover 6 can be exchanged through the air passages 61, air pressure is reduced, and friction is reduced.

[0026] The decorative plate 7 is a decorative plate with fan-shaped slits, the decorative plate 7 is in an arc-shaped structure of a “” type cover, and is attached between a side surface and an inside of the sound system shell 2, the protective cover 6 penetrates through a middle portion of the decorative plate 7, a middle portion between the protective cover 6 and the decorative plate 7 has a certain gap, and a middle top portion of the protective cover 6 is flush with a middle inner groove top portion of the decorative plate 7.

[0027] In summary, the gap for guiding air flow is added to the decorative plate 7, the gap is designed according to certain aesthetics, the slits are in a fan shape, the exchange efficiency of air between the decorative plate 7 and the bass unit 5 and air above the sound cavity is improved, air can reciprocate in the entire sound cavity, air pressure is reduced, friction is reduced, vortex shedding is reduced, and wind noise is reduced.

[0028] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A speaker for reducing wind noise, comprising a speaker base (1) and a decorative panel (7), characterized in that: At the top edge of the sound base (1), a sound housing (2) is provided. A bass unit sound cavity (3) is formed inside the sound housing (2). A bass unit diaphragm (4) is provided on the sound base (1). A bass unit (5) is provided on the top of the bass unit diaphragm (4). A protective cover (6) is provided on the sound base (1) outside the bass unit (5). A decorative panel (7) is fixedly installed on the sound base (1) and is located above the protective cover (6). The decorative panel (7) is provided with fan-shaped slits (71). There are multiple fan-shaped slits (71), and the multiple fan-shaped slits (71) are distributed in a circular pattern around the circumference of the fan-shaped slits (71). Ventilation grooves (61) are formed at the bent and concave parts of the protective cover (6). There are multiple ventilation grooves (61), and the multiple ventilation grooves (61) are distributed in a circular pattern around the circumference of the protective cover (6). The ventilation grooves (61) are of an "L"-shaped arc-shaped notch structure.

2. The speaker for reducing wind noise according to claim 1, characterized in that: The cross-section of the protective cover (6) is of a structure in which the inverted "匚"-shaped side extends circumferentially.

3. The speaker for reducing wind noise according to claim 1, characterized in that: The decorative panel (7) is of a "匚"-shaped cover arc-shaped structure, and its side is in contact with the inner side of the sound housing (2).

4. The speaker for reducing wind noise according to claim 2, characterized in that: The middle top of the protective cover (6) penetrates through the middle of the decorative panel (7).

5. A speaker for reducing wind noise according to claim 4, characterized in that: There is a certain gap in the middle between the protective cover (6) and the decorative panel (7).

6. The speaker for reducing wind noise according to claim 1, characterized in that: The middle top of the protective cover (6) is flush with the top of the middle inner groove of the decorative panel (7).

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